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Long Range Hunting & Shooting
Energy or bullet diameter most important?
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<blockquote data-quote="RockyMtnMT" data-source="post: 1236219" data-attributes="member: 7999"><p>We did some extensive testing today with the new copper that we are now using. It is softer than any we used in the past. One of my big worries with this copper was that it may cause fouling. I did not find any copper fouling today breaking in a new barrel and getting 50 shots through it. This was a 27 Nosler and we got it performing very nicely with our 168g and a vel of 3250fps. This rifle is a 7" twist.</p><p></p><p>The density difference between copper and lead is another physics issue. Weight being a necessity for bc gives the advantage to lead core bullets. Simply can't beat physics. We have our design that you have seen that we have not marketed yet, and in testing so far it shows to increase bc. It is pretty drastic in design and warrants us waiting until the market and us are ready to release it.</p><p></p><p>We have chosen to start our bullet line with the most forgiving, easiest to load design to start our company with. Having a reputation for highly accurate bullets regardless of the bc is our plan. I think if we started out with bullets that are difficult to tune for accuracy, but have high bc's, it would be a bad idea.</p><p></p><p>We did some testing today with a short for caliber .284 due to an 11" twist. We made this bullet specifically for this rifle, and made it as heavy as we could. Long bearing surface, short nose, very little bt. Just enough to make it easier to seat than a true flat base. Shooting it for drops out to 620y it did better than we expected. We will be spending some time with this type of design for more standard twists and making bullets as heavy as possible. Weight makes more difference than form for bc. Generally.</p><p></p><p>Got a text today from a Cal customer that harvested a 3x4 blacktail and recovered the bullet in the animal. The pic looked perfect. He was shooting an 8mm with our 221g at nearly 3300fps. Shot the buck at 250y running away. Hit him in front of the hip and lodged in the far shoulder. Buck was cresting the hill on impact and slid 60y down the other side. I believe he is a member here, so hoping he will post his pics.</p><p></p><p>Schedule is tough for us right now as we are going to be adding another lathe to meet demand for a ammo manufacture that we supply. Starting to look tough for us to make our normal hunting trip this year. Hoping we can get a late season trip in. If you would like to develop a rifle this fall let me know and one or both of us will run out to your place and bring the loading trailer and see if we can develop one of those rifles to your satisfaction.</p><p></p><p>Steve</p></blockquote><p></p>
[QUOTE="RockyMtnMT, post: 1236219, member: 7999"] We did some extensive testing today with the new copper that we are now using. It is softer than any we used in the past. One of my big worries with this copper was that it may cause fouling. I did not find any copper fouling today breaking in a new barrel and getting 50 shots through it. This was a 27 Nosler and we got it performing very nicely with our 168g and a vel of 3250fps. This rifle is a 7" twist. The density difference between copper and lead is another physics issue. Weight being a necessity for bc gives the advantage to lead core bullets. Simply can't beat physics. We have our design that you have seen that we have not marketed yet, and in testing so far it shows to increase bc. It is pretty drastic in design and warrants us waiting until the market and us are ready to release it. We have chosen to start our bullet line with the most forgiving, easiest to load design to start our company with. Having a reputation for highly accurate bullets regardless of the bc is our plan. I think if we started out with bullets that are difficult to tune for accuracy, but have high bc's, it would be a bad idea. We did some testing today with a short for caliber .284 due to an 11" twist. We made this bullet specifically for this rifle, and made it as heavy as we could. Long bearing surface, short nose, very little bt. Just enough to make it easier to seat than a true flat base. Shooting it for drops out to 620y it did better than we expected. We will be spending some time with this type of design for more standard twists and making bullets as heavy as possible. Weight makes more difference than form for bc. Generally. Got a text today from a Cal customer that harvested a 3x4 blacktail and recovered the bullet in the animal. The pic looked perfect. He was shooting an 8mm with our 221g at nearly 3300fps. Shot the buck at 250y running away. Hit him in front of the hip and lodged in the far shoulder. Buck was cresting the hill on impact and slid 60y down the other side. I believe he is a member here, so hoping he will post his pics. Schedule is tough for us right now as we are going to be adding another lathe to meet demand for a ammo manufacture that we supply. Starting to look tough for us to make our normal hunting trip this year. Hoping we can get a late season trip in. If you would like to develop a rifle this fall let me know and one or both of us will run out to your place and bring the loading trailer and see if we can develop one of those rifles to your satisfaction. Steve [/QUOTE]
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